Here is the full list of all 12 Lowglow achievements.
Complete the third chapter
Complete 15 levels with less lines than the given amount.
Complete the second chapter.
Open your first vault.
Complete the first chapter.
Destroy 50 lines.
Complete 5 levels with less lines than the given amount
Complete a level without missing a single drop.
Complete the fourth chapter
Complete the fifth chapter
Open all of the vaults in Umbralight
Complete 30 levels with less lines than the given amount. Magnificent!